Born into the family business of race cars, Speed Racer (Emile Hirsch) is one of the track's hottest stars. Sitting behind the wheel of his awesome Mach 5, Speed consistently blows away the competition. When Speed turns down an offer from the head of Royalton Industries, he uncovers a terrible secret: powerful moguls are fixing the races to boost their profits. Hoping to beat Royalton at his own game, Speed enters the same grueling cross-country race that claimed his beloved brother's life.